I found a superrbbb way of saving on Gold Class shampoo.
add 4 caps of GC shampoo
+ 4 Liters of tap water.
i found that this water combo is cold and doesnt soap up so well. plus 4 caps is 1 ounce. banyak tuuu..
this is result of my new method
add 2 1/2 caps of GC shampoo
+ 1 Litre boiling water
+ 3 litre tap water
dammmmn goood! very very nice soapy suds.
its lasted the whole car. and the wash mitt just glides over very nicely.
very nice if i may blow my own trumpet